APA-referens (7:e uppl.)

Shadle, M. A. (2011). The origins of war: A Catholic perspective. Georgetown University Press.

Chicago-referens (17:e uppl.)

Shadle, Matthew Allen. The Origins of War: A Catholic Perspective. Washington, D.C.: Georgetown University Press, 2011.

MLA-referens (9:e uppl.)

Shadle, Matthew Allen. The Origins of War: A Catholic Perspective. Georgetown University Press, 2011.